Well, not every doctrine should fit the team game team weapon wall meta anyways. This doctrine is already one of the strong 1v1 picks for USF and was consistently top 1 for a long long time.
it was meta since Heavies are faster timming and better AI power.However, After the Heavies nerf. M26 is on back foot because:
+ Cant actually brawling
+ DPS consider worse than tiger ( bescaue of lacking of tanky, Wind up wind down time, pen + worse vet).
+ Tiger has some Ground control Abilities to follow up: Ju-87 bombing, Light arty barrage, Loiter. Meanwhile M26 only have CA which is forcing USF mass blobing inf + tank together and get fucked by well placed mine, MG, pak gun.
+ Repair time LMAO, sad RE noise.
After all, genaral Heavies nerf made M26 worse than IS2, KT, Tiger + Tiger ACE. Why I had to pay so much resouces to a heavy tank not actually heavy tank, worse vet, lack of DPS ? Mobilites of M26 is not enough !, because panther can catch you, tiger can actually intercept you ?
Same story as Ez8, lack of powers, mobility for the price.